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1. WO2020193713 - METHOD FOR CONTROLLING A HIGH-PRESSURE FUEL INJECTOR

Publication Number WO/2020/193713
Publication Date 01.10.2020
International Application No. PCT/EP2020/058579
International Filing Date 26.03.2020
IPC
F02D 41/20 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
41Electrical control of supply of combustible mixture or its constituents
20Output circuits, e.g. for controlling currents in command coils
CPC
F02D 2041/2006
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
41Electrical control of supply of combustible mixture or its constituents
20Output circuits, e.g. for controlling currents in command coils
2003using means for creating a boost voltage, i.e. generation or use of a voltage higher than the battery voltage, e.g. to speed up injector opening
2006by using a boost capacitor
F02D 2041/2082
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
41Electrical control of supply of combustible mixture or its constituents
20Output circuits, e.g. for controlling currents in command coils
2068characterised by the circuit design or special circuit elements
2082the circuit being adapted to distribute current between different actuators or recuperate energy from actuators
F02D 2400/16
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
2400Control systems adapted for specific engine types; Special features of engine control systems not otherwise provided for; Power supply, connectors or cabling for engine control systems
16Adaptation of engine control systems to a different battery voltages, e.g. for using high voltage batteries
F02D 41/20
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
41Electrical control of supply of combustible mixture or its constituents
20Output circuits, e.g. for controlling currents in command coils
Applicants
  • CONTINENTAL AUTOMOTIVE GMBH [DE]/[DE]
Inventors
  • BAVOIS, Thierry
Agents
  • FOURNIE, Gilles
Priority Data
FR190311926.03.2019FR
Publication Language French (FR)
Filing Language French (FR)
Designated States
Title
(EN) METHOD FOR CONTROLLING A HIGH-PRESSURE FUEL INJECTOR
(FR) PROCÉDÉ DE COMMANDE D'UN INJECTEUR DE CARBURANT HAUTE PRESSION
Abstract
(EN)
Method for controlling a fuel injector which is provided with an actuation solenoid for a needle which opens the injector and a spring for restoring the needle to the closed position, the solenoid being supplied with electrical current by a control means comprising a first potential and a second potential, a first and a second diode, a first transistor, a second and a third transistor controlled in order to generate different currents from the potentials.
(FR)
Procédé de commande d'un injecteur de carburant muni d'un solénoïde d'actionnement d'une aiguille ouvrant l'injecteur et d'un ressort de rappel de ladite aiguille en position fermée, le solénoïde étant alimenté en courant par un moyen de commande comprenant un premier potentiel et un deuxième potentiel, une première et une deuxième diode, un premier transistor un deuxième et un troisième transistor commandé pour générer différents courants à partir des potentiels.
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